Balance the equations below by writing the appropriate coefficients in the blanks - ___ NaNO3 + ___ PbO ___ Pb(NO3)2 + ___ Na2O

___ Ca3P2 + ___ H2O ___Ca(OH)2 + ___ PH3

___Fe2O3 + ___ CO ___Fe + ___ CO2

___NH3 + ___ O2 ___ NO2 + ___ H2O

___FeS + ___O2 ___Fe2O3 + ___SO2

___ C3H6O2 + ___ O2 ___ CO2 + ___ H2O